Three-way by-pass valve



J am. 16, 1923.

C. F. BRAUN. THREE-WAY BY-PASS VALVE.

HHM/01H Y W g bwl 17. Bra/m9@ Patented dan. l, 1923.

Meana garant ortica.

CARL F. BRAUN, OF SAN" FRANCISCO, CLIFORNE..

' THREE-WAY nY-Pass vanvn.

I Application-mcd January 15, 1919. Serial No. 271,277.

To all whom 'it may concern:

Be it known that I, CARL F. BRAUN, a citizen of the United States, residing at San Francisco, lin the county of San Francisco and State of California, have invented new and useful Improvements in Three-Way By-Pass Valves, of which the following is a specification.

vThis invention relates to a by-pass valve,

. and particularly to a three-way globe valve of the by-pass type.

It is the principalobject of the present invention to provide a by-pass valve controlling the iiow of fluid into and out of the runs of a pipe line and to a side line, all of which pipe lines are in a single plane and the valve stem disposed in a plane at right angles thereto, thus permitting a compact valve to be constructed and placed in inaccessible locations without making the operation of the Valve dilicult.

The invention further consists of the parts and the construction, combination and-arrangement of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings in which- Fig. 1 is a vertical central section through the valve.

Fig. 2 is a similar section angles to Fig. 1.

Fig. 3 is a section similar to Fig. 1, showing a modification of the valve.

Fig. 4 is a vertical central section taken at right angles to Fig. 3.

Fig. 5 is a view in horizontal section .illustrating another form ofthe valve shown taken at right in Figs. 1 and 2.

Referrlng to the drawings in detail, A indicates the main casing ofthe valve which in this instance is divided into three separate chambers'indicated at 2, 3 and 4, by means of a pairof horizontal interspaced partition walls 5 and 6. These walls form the central chamber 2 and the upper and lower chambers indicated at 3 and 4 respectively. -Communicating with the lower and upper chambers are a pair of flanged pipe connections -7 and 8 and communicating with the central chamber is a flanged pipe .connectionr The severalpipe connections are all mounted on the same plane and means have been provided for distributing and regulating a. flow of iluid or liquid through the valve so that it may be distributed through one or two of the pipe lines connecting with the valve, as the operator desire. That is, liquid entering through the connection 9 may be by-passed through either the connections 7 or 8 or through both, or liquid entering through either of the connections 7 or 8 may be distributed through both of the other connections.

This is accomplished in the following manner: secured on top of the casing is a head member 10 on which is formed a stuing boX 11. Extending through the stuffing box is a valve stem 12, on the upper end of which is secured a. handle 13 and suitably attached to t-he lower end of the stem is a double-faced valve 14 which is adapted to -be moved into engagement with one or the other of a pair of valve seats, shown at 15 and 16. These seats are formed in bushings 17, which .have been screwed into the body of the valve to permit the seats to be removed for `ie-grinding or replacement. This feature does, of course, not form any part of the present invention as it is a common expedient resorted to in different forms of valves. f.

The stem 12 supporting the valveis prefy erably guided by a lower extension 18 which passes through a guide lug 19 formedin the lower part of the valve casing. The upper end of the stem is threaded, as at 20 and as .it passes through a threaded block 21,

supported by standards 22, it can readily be seen that the valve 14 may be raised or lowered to close one or another of the openings 23 and 24 formed in the valve Iseat bushings 17. y

Theoperation of the valve is as follows: With the valve positioned, as shown in Fig. 1, it can readily be seen that if the liquid enters through the connection 8 in the direction of arrow A, that the liquid thus entering will pass through the upper chamber 3, the passage 23, the central chamber 2, and will then finally dischar e through the connection 9; similarly, if t e valve 14 is 4partly opened or moved to a central position both the connections 7 and 8 or to move the valve into engagement with the valve seat 15' and direct the entire flow through the connection 7, any of the operations being possible, whether the inflow takes place through one connection or the other.

By referring to F'igs. 1 and 2, it will be seen that the central chamber 2 is indirect alignment with the connection 9 and that the connections 7 and 8 are mounted 'in alignment with each other. A direct flow is thus secured to the. central chamber 2 from the connection 9 while distribution of the liquidv through the connections 7 or 8 takes place through the valve `seat `openings 23 and 24; By referring to the modified form of the valve shown in Figs. 3 and 4, it will be seen that this construction is partly reversed. The valve there shown is also provided with three chambers; that is, the central chamber 2a, and an upper and a lower chamber, as indicated at 3 and 4 respectively. The central chamber is in this instance directly connected with the connection 8, the lower chamber communicates with the connection 7 and the upper chamber with the right angular connection 9. A direct flow may thus be obtained through the connection 8- and distribution or bypassing will take place through thel rightangular connections 7' and 9. Construction yof the valve is otherwise similar to the| valve shown in Figs. 1 and 2, the only difference beingthat the connection 8 communicates directly with the central chamber, as shown in Figs. 3 and 4, while the connection 9 communicates with 'the central chamberv in the preferred form of thestructure shown in Figs. 1 and 2.

The form of the device disclosed in Fig-5 embodies aligned inlet and outlet passagesA 7 and 8, disposed at angles to the passageway'9 land an aligned passageway 9', all of said passageways being in the same' plane and. controlled `by the valve mechanism as previously described. T-he communication ybetween the passageways 7, 8 and 9 is identical with that shown in Figs. 1 and 2 of the drawings. However, there is uninterrupted communication between the passageways 8 and 9. This provides a valve in which simultaneous communication may be established between the passagYeways 7, 8, 9 and 9', or between passageways and 9 and separate communication between passageways 8 and 9', or again, between the pas-.

sageways 8 and 9 and'separate communication between the passageways 8 and 9,' thus making it possible'to have a constant flow of fluid through pipes disposedy atv an angle to each other'and providing means forallowing these pipes to simultaneously communiv cate withthe other passageway/s.

9, or all three passageways 7, Sand 9. In

the form of the valve shown in Figs. 3 and 4,

communication may be established between the passageways 7 and 8, 7, 8 and 9, or the passageways 8 and 9.

The valve construction 'as here shown is particularly adapted as a by-pass valve where several pipe lines approach each other on the same plane, and particlarly where it would be practically impossible to vinstall the valve it elbows, uprights or vertical'connections were required. The present valve permits the several pipe lines connected with the valve, to enter the same on a common plane, vThis is of'considerable importance as itv permits installation where other valves could not possibly be em loyed, and it furthermore reduces the n um r of nipples and-'elbowsand ythe friction losses otherwise occurring with ordinary valves.

l Having thus described my invention, what I .claim and desireto secure by Letters Patent is f 1. A distributing valve adapted to control the intercommunicating flow between a plurality of pipes lying in the same plane, comprislng a casing formed with a plurality of outlet and inlet openings disposed in a common plane, a central valve lchamber directly connecting with only one of said openings, by-pass chambers communicating with and disposed upon opposite sides of the central inlet opening, valve seats'in opposite walls of the central chamber and through which" communication between the central and bypass chambers may be established, and a valve member adapted 4to be movedto `positively seat upon either of saidyvalve seats,

the actuating stemy of said valve member b eingdisposed at right 'angles tothe plane of the valve seats and the plane of the casing openings. r v y ,2. vA distributing valve ada ted to control the intercommunicating llow etween a plurality of pipes lyingin the same plane, comchamber, each chamber having an outlet vor by-pass chambers connecting with opposite sides of the central chamber, each chamber having one or more outletor inletvopenin valve seatsformed in opposite walls-f t e central chamber land through whichcommblished, and a valve member adapted to said valve seats, the actuating stem of said Lelie/ee munication with the luy-pass chambers is es- In testimonywhereo I have hefeunto set my hand in 'the presence of two subscribing be moved to positively seat upon eithei` of Witnesses.

CARL F. BRAUN. valve member loeing disposed at right angles 'Witnessey 'to the plane of the valve seats and the plane GEO. C. SAUGHTARY, of the casing openings. G. B. DUFFY. 

